Permanent magnet fixing structure, fixing method, permanent magnet motor and vehicle

A fixed structure, permanent magnet motor technology, applied in the direction of magnetic circuit shape/style/structure, manufacturing motor generators, electromechanical devices, etc., can solve the problems of permanent magnet fragmentation, permanent magnet surface damage, low efficiency, etc., to achieve increased Great reliability and lifespan, reduce manufacturing risk, and speed up production efficiency

Pending Publication Date: 2022-05-13
CRRC QINGDAO SIFANG CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the permanent magnet has many polarities, or there are many axial segments, or the amount of use is large, the method of using the through-slot rod is heavy and the efficiency is very low, and the surface of the permanent magnet is easily damaged by manual hammering on the through-slot rod.
When the axial length of the permanent magnet motor is long, the through-slot rod becomes slender, which is not conducive to the advancement of the permanent magnet. Since the permanent magnet itself is very brittle, the permanent magnet often breaks inside th

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Permanent magnet fixing structure, fixing method, permanent magnet motor and vehicle
  • Permanent magnet fixing structure, fixing method, permanent magnet motor and vehicle
  • Permanent magnet fixing structure, fixing method, permanent magnet motor and vehicle

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] Example 1

[0036] like figure 1 and figure 2 As shown, this embodiment provides a permanent magnet fixing structure, which includes a first cover plate 1-1 and a second cover plate 1-2, the first cover plate 1-1 and the second cover plate 1-2 It is used to be respectively fixed on both ends of several permanent magnets 2, so as to realize the self-locking of the permanent magnets 2 in the axial direction; the permanent magnets 2 are arranged in sequence according to the set polarity direction of the permanent magnets.

[0037] exist figure 1 In the middle, the permanent magnet 2 is placed between the first cover plate 1-1 and the second cover plate 1-2, and is not hit by the external slotted bar during the production process, which can well protect the surface of the permanent magnet, At the same time, no permanent magnet fragmentation phenomenon occurs. In the process of use, it is not affected by external vibration, shock and other factors, so that the permanent...

Example Embodiment

[0052] Embodiment 2

[0053] In this embodiment, a permanent magnet fixing method using the permanent magnet fixing structure as described above is also provided, which includes:

[0054] Preset the polarity direction of the permanent magnet;

[0055] The permanent magnets are arranged in sequence according to the preset polarity directions of the permanent magnets, and the two ends are respectively fixed between the first cover plate and the second cover plate, so as to realize the self-locking of the permanent magnets in the axial direction;

[0056] Insert the fixed permanent magnet directly into the permanent magnet slot in the punch.

Example Embodiment

[0057] Embodiment 3

[0058] In this embodiment, a permanent magnet motor is also provided, which particularly includes an iron core and a permanent magnet, and the permanent magnet is fixed by the permanent magnet fixing structure as described above.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the field of permanent magnet motors, and provides a permanent magnet fixing structure, a fixing method, a permanent magnet motor and a vehicle. The permanent magnet fixing structure comprises a first cover plate and a second cover plate, and the first cover plate and the second cover plate are used for being fixed to the two ends of a plurality of permanent magnets respectively so as to achieve self-locking of the permanent magnets in the axial direction. And the permanent magnets are sequentially arranged according to the polarity direction of the permanent magnets. The first cover plate and the second cover plate are used for absorbing external force in the manufacturing and application process, the permanent magnet and the surface are effectively protected, the reliability of the permanent magnet motor is improved, the service life of the permanent magnet motor is prolonged, and the product quality is improved.

Description

technical field [0001] The invention belongs to the field of permanent magnet motors, and in particular relates to a permanent magnet fixing structure, a fixing method, a permanent magnet motor and a vehicle. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] At present, permanent magnets are assembled in permanent magnet motors generally in two forms: built-in type and surface type. These two types of permanent magnets are directly fixed in the punching sheet, which is not considered in the manufacturing process of permanent magnet motors. Protection for permanent magnets. [0004] In the production process of the permanent magnet motor, when the permanent magnet is embedded in the center of the iron core, it is necessary to use a non-magnetic through-slot bar to insert the permanent magnet into the iron core. When the iron core of the perm...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H02K1/06H02K1/27H02K15/03
CPCH02K1/06H02K1/27H02K15/03
Inventor 曹江谢立军孙宁王升晖李克
Owner CRRC QINGDAO SIFANG CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap